Si4 TrenchFET® Power MOSFETs

Vishay / Siliconix Si4 TrenchFET® Power MOSFETs are used for amplifying electronic signals. These devices are available in N-channel, P-channel, and N- and P-channel versions. The Si4 MOSFETs offer different VGS and VDS options and temperature ranges. Vishay / Siliconix Si4 TrenchFET Power MOSFETs operate in an enhancement mode and are used for switching between electronic signals. These surface-mount MOSFETs are 100% Rg and UIS tested.

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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Technology
Mounting Style
Package/Case
Transistor Polarity
Number of Channels
Vds - Drain-Source Breakdown Voltage
Id - Continuous Drain Current
Rds On - Drain-Source Resistance
Vgs - Gate-Source Voltage
Vgs th - Gate-Source Threshold Voltage
Qg - Gate Charge
Minimum Operating Temperature
Maximum Operating Temperature
Pd - Power Dissipation
Channel Mode
Tradename
Packaging

Vishay Semiconductors MOSFETs 25V Vds 12V Vgs SO-8
Datasheet
12,374In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 25 V 18 A 8.6 mOhms - 12 V, 12 V 600 mV 56 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 40V Vds 25V Vgs SO-8
Datasheet
3,192In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 40 V 27.2 A 4.5 mOhms - 25 V, 25 V 1.2 V 95 nC - 55 C + 150 C 6 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 40V Vds 20V Vgs SO-8
Datasheet
2,185In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 40 V 20.5 A 7.5 mOhms - 20 V, 20 V 1 V 77 nC - 55 C + 150 C 5.7 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 20V Vgs SO-8
Datasheet
6,420In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 30 V 10.9 A 24 mOhms - 20 V, 20 V 1 V 12 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 20V Vgs SO-8
Datasheet
4,975In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 30 V 19.3 A 7.9 mOhms - 20 V, 20 V 3 V 20 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 20V Vgs SO-8
Datasheet
4,841In Stock
5,000Expected 19/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 30 V 17 A 9.5 mOhms - 20 V, 20 V 1 V 27 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 25V Vgs SO-8
Datasheet
17,813In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 30 V 12 A 21 mOhms - 20 V, 20 V 1.4 V 7.5 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 20V Vgs SO-8
Datasheet
4,717In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 2 Channel 30 V 12.1 A 14 mOhms - 20 V, 20 V 1 V 17 nC - 55 C + 150 C 3.7 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs -30V Vds 20V Vgs SO-8
Datasheet
8,957In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 P-Channel 1 Channel 30 V 9 A 32 mOhms - 20 V, 20 V 1 V 38 nC - 55 C + 150 C 4.2 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs -30V Vds 20V Vgs SO-8
Datasheet
17,263In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 P-Channel 1 Channel 30 V 11.4 A 24 mOhms - 20 V, 20 V 1 V 50 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 40V 33A 7.8W 3.8mohm @ 10V
Datasheet
3,203In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 40 V 33 A 3.8 mOhms - 20 V, 20 V 1.5 V 122 nC - 55 C + 150 C 7.8 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 200V Vds 20V Vgs SO-8
Datasheet
2,292In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 200 V 2.2 A 240 mOhms - 20 V, 20 V 2 V 18 nC - 55 C + 150 C 2.5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs -20V Vds 12V Vgs SO-8
Datasheet
10,872In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 P-Channel 1 Channel 20 V 26.6 A 6.2 mOhms - 8 V, 8 V 600 mV 125 nC - 55 C + 150 C 6.6 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs RECOMMENDED ALT SI44
Datasheet
6,163In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 200 V 4 A 80 mOhms - 20 V, 20 V 2 V 42 nC - 55 C + 150 C 3.1 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs -30V Vds 20V Vgs SO-8
Datasheet
10,545In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 P-Channel 1 Channel 30 V 36 A 2.7 mOhms - 20 V, 20 V 2.5 V 285 nC - 55 C + 150 C 7.8 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs -40V Vds 20V Vgs SO-8 N&P PAIR
Datasheet
7,441In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel, P-Channel 2 Channel 40 V 5.8 A, 6.8 A 35.5 mOhms, 45 mOhms - 20 V, 20 V 1.2 V, 1.4 V 11.7 nC, 25 nC - 55 C + 150 C 3 W, 3.1 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 25V Vds 16V Vgs SO-8
Datasheet
3,074In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 40V Vds 20V Vgs SO-8
Datasheet
2,768In Stock
5,000Expected 19/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 40 V 19 A 9 mOhms - 20 V, 20 V 1 V 50 nC - 55 C + 150 C 6 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 80V Vds 20V Vgs SO-8
Datasheet
2,737In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 80 V 9.5 A 16.5 mOhms - 20 V, 20 V 2 V 41 nC - 55 C + 150 C 3.1 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 20V Vgs SO-8
Datasheet
9,554In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 2 Channel 30 V 5.8 A 40 mOhms - 20 V, 20 V 3 V 9 nC - 55 C + 150 C 2.3 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs RECOMMENDED ALT SI40
Datasheet
14,378In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 100 V 11.1 A 17 mOhms - 20 V, 20 V 1.5 V 29.5 nC - 55 C + 150 C 5.7 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 100V Vds 20V Vgs SO-8
Datasheet
46,783In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 100 V 10.3 A 26 mOhms - 20 V, 20 V 1.2 V 12 nC - 55 C + 150 C 5.6 W Enhancement Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 20V Vds 16V Vgs SO-8
Datasheet
4,297In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 20 V 20 A 6 mOhms - 16 V, 16 V 1 V 95 nC - 55 C + 150 C 5.7 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 30V Vds 20V Vgs SO-8
Datasheet
10,215In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 30 V 14 A 14 mOhms - 20 V, 20 V 1.2 V 23 nC - 55 C + 150 C 5 W Enhancement TrenchFET Reel, Cut Tape, MouseReel

Vishay Semiconductors MOSFETs 20V Vds 20V Vgs SO-8
Datasheet
4,441In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Si SMD/SMT SOIC-8 N-Channel 1 Channel 20 V 46 A 2 mOhms - 20 V, 20 V 1 V 110 nC - 55 C + 150 C 7.8 W Enhancement TrenchFET Reel, Cut Tape, MouseReel